Initial commitHEADmaster

3 files changed, 34 insertions, 0 deletions

diff --git a/src/rv32i/mod.rs b/src/rv32i/mod.rs
new file mode 100644
index 0000000..2fb36ce
--- /dev/null
+++ b/src/rv32i/mod.rs
@@ -0,0 +1,2 @@
+pub mod rv32i;
+pub mod slti;
\ No newline at end of file
diff --git a/src/rv32i/rv32i.rs b/src/rv32i/rv32i.rs
new file mode 100644
index 0000000..88826b2
--- /dev/null
+++ b/src/rv32i/rv32i.rs
@@ -0,0 +1,14 @@
+use crate::rv32_cpu::rv32_cpu::Rv32Cpu;
+use crate::extension::extension::Extension;
+use super::slti::Slti;
+use crate::instruction::instruction::Instruction;
+
+pub struct Rv32i {
+}
+
+impl Extension for Rv32i {
+    fn add_instructions(cpu: &mut Rv32Cpu) -> &mut Rv32Cpu {
+        cpu.add_decode(Slti.opcode(), Box::new(Slti));
+        cpu
+    }
+}
\ No newline at end of file
diff --git a/src/rv32i/slti.rs b/src/rv32i/slti.rs
new file mode 100644
index 0000000..09d166c
--- /dev/null
+++ b/src/rv32i/slti.rs
@@ -0,0 +1,18 @@
+use crate::rv32_cpu::rv32_cpu::State;
+use crate::instruction::instruction::{Instruction, Opcode};
+
+#[derive(Debug)]
+pub struct Slti;
+
+impl Instruction for Slti {
+    fn opcode(&self) -> Opcode {
+        Opcode {
+            opcode6_2: 0b00100,
+            opcode14_12: Some(0b001),
+            opcode31_27: Some(0b00000),
+        }
+    }
+    fn execute(&self, instruction: u32, state: &mut State) -> Result<(), Box<dyn std::error::Error>> {
+        Ok(())
+    }
+}